E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
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B
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E21B 43/00 (2006.01) E21B 36/04 (2006.01) E21B 43/24 (2006.01) E21B 43/30 (2006.01)
Patent
CA 1254934
METHOD AND APPARATUS FOR ENHANCING LIQUID HYDROCARBON PRODUCTION BY FORMATION HEATING Abstract of the Invention Method and apparatus for enhancing liquid hydrocarbon production through a single traditional producing borehole recognizing traditional producing well spacing from a slowly producing formation by use of non-uniform heating through interrelated electrode arrays surrounding the borehole. Heating the formation around the borehole through an interrelated electrode array designed for the formations geometry and geophysics favorably redistributes the pressure gradient throughout the formation for a substantial distance beyond the borehole permitting net energy effective production. One optimum electrode array may consist of ring electrodes or electrode segments so disposed as to electrically approxi- mate a ring. Electrically conductive well bore casing in the formation may be used as an electrode. A return electrode of low impedance disposed close to the surface of the earth may be utilized.
512853
Sresty Guggilam C.
Taflove Allen
Umashankar Korada
Meredith & Finlayson
Uentech Corporation
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